What is the return value of the function call BS(array, 0, 9, 45), where array is an array declared as int array[]={3, 10, 13, 20, 35, 45, 67, 77, 82, 90}; The recursive function BS is defined as: int BS(int array[], int first, int last, int value) {     int mid;            if (first > last)         return -1;     else {             mid = (first + last) / 2;             if (value == array[mid])                 return mid;             else if (value < array[mid])                 return BS(array, first, mid - 1, value);             else if (value > array[mid])                 return BS(array, mid + 1, last, value);         } }   Question 9 options:   2   3   8   5

C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter15: Recursion
Section: Chapter Questions
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What is the return value of the function call BS(array, 0, 9, 45), where array is an array declared as

int array[]={3, 10, 13, 20, 35, 45, 67, 77, 82, 90};

The recursive function BS is defined as:

int BS(int array[], int first, int last, int value)

{
    int mid;
      
    if (first > last)
        return -1;
    else {
            mid = (first + last) / 2;

            if (value == array[mid])
                return mid;
            else if (value < array[mid])
                return BS(array, first, mid - 1, value);
            else if (value > array[mid])
                return BS(array, mid + 1, last, value);
        }
}

 
Question 9 options:
 

2

 

3

 

8

 

5

 
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